Tornadoes · United States · Florida · 2020
EF0 tornado, Greenville to Madison, Florida, March 31, 2020
From Greenville to Madison, this EF0 tornado ran 0.1 miles across Madison County on March 31, 2020, touching down at 4:33 PM EDT and reaching 50 yards wide. It killed nobody, and did $50,000 of property damage.
The rating scale
Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
EF2111 to 135 mph
Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.
EF3136 to 165 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
EF5over 200 mph
Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.
Unrated
The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.
The record
- Rating
- EF0
- Date
- March 31, 2020
- Touchdown
- 4:33 PM EDT (20:33 UTC)
- Lifted
- 4:35 PM EDT (20:35 UTC)
- On the ground
- 2 minutes
- Path length
- 0.1 miles (0.2 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $50,000
- County
- Madison County
- Touchdown point
- 30.461, -83.411
- Lift-off point
- 30.461, -83.409
- Record number
- 2003311433-01
The damage survey
9 damage points were recorded along this path by NWS TAE, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 90 mph.
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
What the Weather Service recorded
A strengthening surface low pressure area moved across the Tri-State region. A warm front lifted northward through the area, and a cold front moved through during the afternoon hours. Scattered thunderstorms moved across the area, some of which were severe.
Initial damage, consisting of a few dozen trees uprooted and snapped, was noted on a farm on the west side of HWY 221 just south of I-10. Damage, consisting of hundreds of snapped and uprooted trees, continued to the east northeast crossing Sundown Creek Rd. and eventually I-10. After the tornado crossed I-10 it moved into inaccessible areas of the Hixton Swamp Conservation Area. Based on radar the tornado remained on the ground continuously until damage became accessible again along HWY 360A just south of the intersection with CR 35. Damage to several trees at this location was the last damage evident from this tornado. Damage further northeast in Madison was from a separate brief spinup after this tornado lifted. This tornado was rated EF1 with max winds estimated at 90 mph.
A business suffered roof uplift and had a window blown in. There was significant water damage inside the business. There was an outbuilding damaged at the south Duval Street location as well. There was also scattered minor tree damage in the area. This tornado was rated EF0 with max winds estimated at 75 mph. Damage cost was estimated.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
23 minutes of warning. NWS TAE issued a tornado warning for this county at 20:10 UTC, 23 minutes before the tornado touched down, in force until 20:45 UTC.
The county was under a tornado watch, issued at 18:24 UTC and running to 22:02 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 15:00 UTC | 00:00 UTC | Wind Advisory | TAE |
| 18:24 UTC | 22:02 UTC | Tornado Watch | TAE |
| 20:10 UTC | 20:45 UTC | Tornado Warning | TAE |
| 20:16 UTC | 20:45 UTC | Tornado Warning | TAE |
| 20:39 UTC | 21:02 UTC | Tornado Warning | TAE |
Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.
The forecast that day
The Storm Prediction Center had this point in a Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:11 UTC.
SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.
The air that afternoon
The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.
Tallahassee Rgnl, FL (KTLH), 12:00Z
8.6 hours before the tornado, 86 km from the path. March 31, 2020.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -69256 J/kg
- Surface CAPE
- 187 J/kg
- Mixed-layer LCL
- 734 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
- 0-3 km lapse rate
- 4.4 K/km
Tallahassee Rgnl, FL (KTLH), 00:00Z
3.4 hours after it, 86 km from the path. April 1, 2020.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -161 J/kg
- Surface CAPE
- 36 J/kg
- Mixed-layer LCL
- 896 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -108 m²/s²
- 0-3 km storm-relative helicity
- -92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 5.7 K/km
What was reported nearby
Local storm reports within 60 km of the path, in the three hours either side.
| Time (UTC) | Report | Where | County | Remark |
|---|---|---|---|---|
| 20:08 UTC | TORNADO | 4 Ssw Lamont | Jefferson, FL | TORNADO TOUCHED DOWN SSW OF LAMONT AND DAMAGE WAS NOTED IN FAR EASTERN JEFFERSON COUNTY ALONG HWY 257 NEAR ITS INTERSECTION WITH WALKER SPRING ROAD. DAMAGE CONSISTED OF HUNDREDS OF SNAPPED AND UPROOTED TREES. THE TORNADO |
| 20:17 UTC | TORNADO | 4 Sse Greenville | Madison, FL | REPORT OF DOWNED POWER LINES AND DEBRIS NEAR SUNDOWN CREEK ROAD AND I-10 ASSOCIATED WITH TDS. |
| 21:26 UTC | TSTM WND DMG | 9 Ssw Live Oak | Suwannee, FL | EMERGENCY MANAGER WAS IN ROUTE TO REPORTS FROM 911 DISPATCH OF DAMAGE TO A CHICKEN HOUSE AND NUMEROUS TREES DOWN ALONG CR252 BETWEEN CR129 AND CR349. TIME ESTIMATED BY RADAR. |
| 21:26 UTC | TSTM WND DMG | 9 Ssw Live Oak | Suwannee, FL | EMERGENCY MANAGER WAS IN ROUTE TO REPORTS FROM 911 DISPATCH OF DAMAGE TO A CHICKEN HOUSE AND NUMEROUS TREES DOWN ALONG CR252 BETWEEN CR129 AND CR349. TIME ESTIMATED BY RADAR. |
| 21:26 UTC | TORNADO | 9 Ssw Live Oak | Suwannee, FL | NWS CONFIRMED AN EF-0 TORNADO WITH 85 MPH WINDS BRIEFLY TOUCHED DOWN NORTH OF CR 252 SOUTH OF LIVE OAK, FL. THIS TORNADO DAMAGED A CHICKEN COOP AND TREES IN THE AREA, ONE LARGE TREE BRANCH FELL ON A HOUSE. PATH LENGTH WA |
| 21:26 UTC | TORNADO | 9 Ssw Live Oak | Suwannee, FL | PRELIMINARY REPORTS FROM AN EMERGENCY MANAGER OF DAMAGE TO SEVERAL CHICKEN HOUSES AND NUMEROUS TREES DOWN INDICATE A POSSIBLE WEAK TORNADO.TIME ESTIMATED BASED ON RADAR. |
| 21:26 UTC | TORNADO | 9 Ssw Live Oak | Suwannee, FL | NWS CONFIRMED AN EF-0 TORNADO WITH 85 MPH WINDS BRIEFLY TOUCHED DOWN NORTH OF CR 252 SOUTH OF LIVE OAK, FL. THIS TORNADO DAMAGED A CHICKEN COOP AND TREES IN THE AREA, ONE LARGE TREE BRANCH FELL ON A HOUSE. PATH LENGTH WA |
| 21:26 UTC | TORNADO | 9 Ssw Live Oak | Suwannee, FL | PRELIMINARY REPORTS FROM AN EMERGENCY MANAGER OF DAMAGE TO SEVERAL CHICKEN HOUSES AND NUMEROUS TREES DOWN INDICATE A POSSIBLE WEAK TORNADO.TIME ESTIMATED BASED ON RADAR. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2020 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of March 31, 2020
12 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| March 31 | 9:30 AM CDT | EF1 | George, MS | 8.2 | 50 | |||
| March 31 | 10:23 AM CDT | EF0 | Montgomery, AL | 3.3 | 190 | |||
| March 31 | 10:33 AM CDT | EF0 | Pike, AL | 0.1 | 80 | |||
| March 31 | 10:34 AM CDT | EF0 | Pike, AL | 1.6 | 80 | |||
| March 31 | 10:51 AM CDT | EF0 | Pike, AL | 0.8 | 180 | |||
| March 31 | 11:34 AM CDT | EF2 | Barbour, AL to GA | 30.0 | 350 | 1 | $50,000 | |
| March 31 | 12:55 PM CDT | EF0 | Walton, FL | 0.2 | 25 | $2,000 | ||
| March 31 | 4:10 PM EDT | EF1 | Jefferson, FL | 9.2 | 150 | $2,000 | ||
| March 31 | 4:17 PM EDT | EF1 | Madison, FL | 11.7 | 100 | |||
| March 31 | 5:26 PM EDT | EF0 | Suwannee, FL | 0.8 | 704 | |||
| March 31 | 2:30 PM PDT | EF0 | Benton, WA | 0.1 | 20 | |||
| March 31 | 7:29 PM EDT | EF0 | Saint Johns, FL | 0.4 | 704 |
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.
Sources
NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.